Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Ulrike Niemeier"'
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 24, Pp n/a-n/a (2023)
Abstract The eruption of the Hunga Tonga—Hunga Ha'apai (HTHH) volcano on 15 January 2022 injected about 150 Tg of water vapor (H2O), roughly 10% of the background stratospheric H2O content, to altitudes above 50 km. Simulations of the spatial evolu
Externí odkaz:
https://doaj.org/article/04702ef9207249fc99ee222aad6a4521
Autor:
Christina Brodowsky, Valentina Aquila, Slimane Bekki, Sandip Dhomse, Anton Laakso, Graham Mann, Ulrike Niemeier, Ilaria Quaglia, Eugene Rozanov, Takashi Sekiya, Simone Tilmes, Claudia Timmreck, Pengfei Yu, Yunqian Zhu, Timofei Sukhodolov
Sulphate aerosol in the stratosphere recently became an interactive part of many global climate models and its uncertainties are not yet well constrained. Stratospheric sulphate aerosol is modulated by natural emissions of several sulphur-containing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ac3bb632ccab2b69071cfa04a729841
https://doi.org/10.5194/egusphere-egu23-14591
https://doi.org/10.5194/egusphere-egu23-14591
The evolution of the size distribution of stratospheric aerosols after volcanic eruptions is still not understood very well, due to the temporal sparsity of in situ measurements, the low spatial coverage by ground based observations and the difficult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eac33493bde33389f95960c539da7a12
https://doi.org/10.5194/egusphere-egu23-5788
https://doi.org/10.5194/egusphere-egu23-5788
Publikováno v:
eISSN
The stratospheric aerosol layer plays an important role in the radiative balance of earth primarily through scattering of solar radiation. The magnitude of this effect depends critically on the size distribution of the aerosols. The aerosol layer is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8ac9a2817913884b2dd2667ce963313
https://doi.org/10.5194/egusphere-2023-837
https://doi.org/10.5194/egusphere-2023-837
Autor:
Simone Tilmes, Daniele Visioni, Andy Jones, James Haywood, Roland Séférian, Pierre Nabat, Olivier Boucher, Ewa Monica Bednarz, Ulrike Niemeier
Publikováno v:
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, 2022, ⟨10.5194/acp-22-4557-2022⟩
Atmospheric Chemistry and Physics, 2022, ⟨10.5194/acp-22-4557-2022⟩
This study assesses the impacts of sulfate aerosol intervention (SAI) and solar dimming on stratospheric ozone based on the G6 Geoengineering Model Intercomparison Project (GeoMIP) experiments, called G6sulfur and G6solar. For G6sulfur the stratosphe
Autor:
Ilaria Quaglia, Claudia Timmreck, Ulrike Niemeier, Daniele Visioni, Giovanni Pitari, Christina Brodowsky, Christoph Brühl, Sandip S. Dhomse, Henning Franke, Anton Laakso, Graham W. Mann, Eugene Rozanov, Timofei Sukhodolov
Publikováno v:
Atmospheric Chemistry and Physics, 23 (2)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
A previous model intercomparison of the Tambora aerosol cloud has highlighted substantial differences among simulated volcanic aerosol properties in the pre-industrial stratosphere and has led to questions about the applicability of global aerosol mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2dfc870570af688c3d26e573cee10ca
Autor:
Debra K. Weisenstein, Daniele Visioni, Henning Franke, Ulrike Niemeier, Sandro Vattioni, Gabriel Chiodo, Thomas Peter, David W. Keith
Publikováno v:
Atmospheric Chemistry and Physics. 22:2955-2973
Studies of stratospheric solar geoengineering have tended to focus on modification of the sulfuric acid aerosol layer, and almost all climate model experiments that mechanistically increase the sulfuric acid aerosol burden assume injection of SO2. A
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 93-118 (2022)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
Injecting sulfur dioxide into the stratosphere with the intent to create an artificial reflective aerosol layer is one of the most studied options for solar radiation management. Previous modelling studies have shown that stratospheric sulfur injecti
Autor:
Daniele Visioni, Ben Kravitz, Alan Robock, Simone Tilmes, Jim M. Haywood, Olivier Boucher, Mark Lawrence, Peter Irvine, Ulrike Niemeier, Lili Xia, Gabriel Chiodo, Chris Lennard, Shingo Watanabe, John C. Moore, Helene Muri
Publikováno v:
5149–5176
Atmospheric Chemistry and Physics (ACP)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics Discussions (ACPD)
Atmospheric Chemistry and Physics, 23 (9)
Atmospheric chemistry and physics
Atmospheric Chemistry and Physics (ACP)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics Discussions (ACPD)
Atmospheric Chemistry and Physics, 23 (9)
Atmospheric chemistry and physics
The Geoengineering Model Intercomparison Project (GeoMIP) is a coordinating framework, started in 2010, that includes a series of standardized climate model experiments aimed at understanding the physical processes and projected impacts of solar geoe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d62000451e90f0d963bf6ed40e41de6
https://acp.copernicus.org/preprints/acp-2022-766/
https://acp.copernicus.org/preprints/acp-2022-766/